More slaves exist in Mexico than any other country in the world according to the 2016 Global Slavery Index from Walk Free Index as reported by David Gagne for Insight Crime:
The report highlights how trafficking networks and other criminal groups profit from exploiting marginal populations, especially women and children. By some estimates, 70 percent of all modern slavery cases in Mexico involve organized crime groups. This includes the kidnapping of mostly girls and women for forced prostitution and mostly boys and men for forced labor.
The "drug cartels are believed to be involved in sex trafficking, the document says, using the same organized crime networks used to move drugs and weapons to smuggle human victims across the border into the United States."
The small town of Tenancingo -- about 80 miles from Mexico City -- long has been known for its sex traffickers who have entered the prostitution markets in New York and other U.S. cities according to a 2012 article by Erica Pearson for the Daily News: "Immigration and Customs Enforcement's New York field office arrested 32 sex traffickers last year; 26 of them were from Tenancingo" where "little boys dream of growing up to be pimps." Lori Cohen, a lawyer with Sanctuary for Families which works on behalf of trafficking victims, says the pimp trade is multi-generational: "You have families where the grandfather, father and son are all engaged in trafficking. They pass down the tricks of the trade."
In 2014 three brothers from Tenancingo, Mexico got relatively light sentences -- one got 10 years, and the two others got 18 years -- for their roles in pimping out enslaved girls in New York as reported by John Marzulli for the Daily News: "'I can only describe my life in New York as five years in hell,' said a woman named Carmen who was forced into prostitution at the age of 14."